Home
Class 12
PHYSICS
The electron beam in a colour TV is acce...

The electron beam in a colour TV is accelerated through 32 kV and then strikes the screen. What is the wavelength of the most energetic X-ray photon?

Text Solution

Verified by Experts

Given `V=32KV=32xx10^3V `
When accelerated through `32KV `
` E=32xx10^3eV `
` lambda=(hc)/E=1242/(32xx10^3) `
` =38.8xx10^-3nm `
` =38.8p m`
Promotional Banner

Topper's Solved these Questions

  • X-Rays

    HC VERMA|Exercise Objective 2|8 Videos
  • THERMAL AND CHEMICAL EFFECT OF ELECTRIC CURRENT

    HC VERMA|Exercise Exercise|24 Videos

Similar Questions

Explore conceptually related problems

An electron is accelerated through a potential difference of 81V. What is the de Broglie wavelength associated with it? To which part of electromagnetic spectrum does this wavelength corresspond ?

An electron is accelerated through a potential difference of 100V. What is the de Broglie wavelength associated with it ? To which part of the electromagnetic spectrum does this value of wavelength correspond ?

The de Broglie wavelength associated with an electron accelerated through a potential differenece V is lambda . What will be its wavelength when the accelerating potential is increased to 4V ?

In an accelerator experiment on high energy collisions of electrons with positron, a certain event is interprected as annihilation of an electron-positron pair of total energy 10.2 BeV into two gamma -rays of equal energy. What is the wavelength associated with each gamma -ray ? (1 BeV=10^(9)eV)

An X-ray tube operates at 20 kV. A particular electron loses 5% of its kinetic energy to emit an X-ray photon at the first collision. Find the wavelength corresponding to this photon.

HC VERMA-X-Rays-Exercise
  1. The distance between the cathode (filament) and the target in an X-ray...

    Text Solution

    |

  2. The short-wavelength limit shifts by 26 pm when the operating voltage ...

    Text Solution

    |

  3. The electron beam in a colour TV is accelerated through 32 kV and then...

    Text Solution

    |

  4. When 40 kV is applied across an X-ray tube, X-ray is obtained with a m...

    Text Solution

    |

  5. An X-ray tube operates at 40 kV. Suppose the electron converts 70% of ...

    Text Solution

    |

  6. The wavelength of Kalpha X-ray of tungsten is 21*3 pm. It takes 11*3 k...

    Text Solution

    |

  7. The Kbeta X-ray of argon has a wavelength of 0.36 nm. The minimum ener...

    Text Solution

    |

  8. The kalpha X-rays of aluminium (Z = 13 ) and zinc ( Z = 30) have wavel...

    Text Solution

    |

  9. A certain element emits Kalpha X-ray of energy 3.69 keV. Use the data ...

    Text Solution

    |

  10. The kbeta X-rays from certain elements are given below. Draw a Moseley...

    Text Solution

    |

  11. Use Moseley's law with b = 1 to find the frequency of the Kalpha X-ray...

    Text Solution

    |

  12. The Kalpha and Kbeta X-rays of molybdenum have wavelengths 0*71 A and ...

    Text Solution

    |

  13. The wavelength of Kalpha and Lalpha X-rays of a material are 21.3 pm a...

    Text Solution

    |

  14. The energy of a silver atom with a vacancy in K shell is 25.31 keV, in...

    Text Solution

    |

  15. Find the maximum potential difference which may be applied across an X...

    Text Solution

    |

  16. The electric current in an X-ray tube (from the target to the filament...

    Text Solution

    |

  17. Heat at the rate of 200 W is produced in an X-ray tube operating at 20...

    Text Solution

    |

  18. Continuous X-rays are made to strike a tissue paper soaked with pollut...

    Text Solution

    |

  19. A free atom of iron emits Kalpha X-rays of energy 6.4 keV. Calculate t...

    Text Solution

    |

  20. The stopping potential in a photoelectric experiment is linearly relat...

    Text Solution

    |